Mostly Harmless

Mostly Harmless is a Google Chrome extension for awesome redditors. It's open source, fully-functional, and a breeze to use! Larger screenshots more in-depth info available at http://kerrick.github.com/Mostly-Harmless/
Note: Please report bugs and request features at https://github.com/Kerrick/Mostly-Harmless/issues so they are seen and responded to in a timely manner. I do not check the reviews as often.
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# Features #
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Discovery & Voting:
Mostly Harmless looks up the page you are currently viewing to see if it has been submitted to reddit. If so, you can see everywhere it has been posted, vote the story up or down, and even save, hide, and report the post straight from the popup.
Commenting:
Comments and discussion are a huge part of reddit, so it was important to bake that capability right into Mostly Harmless. You can add a comment from the popup, and if you’re typing a particularly long comment and accidentally close the popup, Mostly Harmless should still have it cached!
Submitting Links:
Reddit wouldn’t be what it is were it not for the submission of fresh and interesting links, so Mostly Harmless will help you submit new pages to reddit with ease. It will automatically populate the URL field, you can grab the title of the page or write your own, and choosing a subreddit is as easy as clicking one you subscribe to or typing any subreddit manually.
Desktop Notifications:
Every redditor knows the joy of getting an orangered. Every redditor also knows that finding out what it’s for, who it’s from, and what it says is half of the fun! Mostly Harmless will check for orangereds at a specified interval and display a desktop notification when you get one. Of course, you can turn this off if you like.
Privacy:
Your browsing habits are your own, and you probably don’t want every page you visit checked on reddit. Instead, Mostly Harmless has an option to only look up pages when you click its icon. Of course that could get tedious, so Mostly Harmless also supports excluding lookups based on domain and regular expression matches.
Customization:
Mostly Harmless has plenty of options to make it your own, but it doesn't get confusing because of the slick interface and explanations for each setting.
Internationalization:
The internet is powered a wide and diverse group of people, so Mostly Harmless supports internationalization. Currently the extension has been translated into English, Spanish, Catalan, Danish, and Finnish. If you fork Mostly Harmless on Github and write your own translation, it could be in any language the Chrome Web Store supports!